Question

Using Xcode 4.2 Storyboard, I’ve just created a segmented control in a view with two segments. I then ctrl-drag from each segment to a separate view to create two segues. It seems the developers forgot to distinguish between the segments though, since only one segue can be created; attempting to create a second to the ‘other’ control segment cause the first segue to be replaced by the second. Does anyone have a Storyboard workaround for this, or must I write the code manually?

Thank you.

Answer 1

4.2 has been publicly release now.

The problem can be solved with Storyboard using a custom segue. In the custom segue the segmented control can be tested to determine which controller to call. I have tested the following custom segue:

#import "FlipTopPop.h"

@interface UIViewController (Extension)

@property (strong, nonatomic) IBOutlet UISegmentedControl *tabControl;

@end


@implementation FlipTopPop

- (void) perform {

UIViewController *src = (UIViewController *) self.sourceViewController;
switch (src.tabControl.selectedSegmentIndex) {
    case 0:
        // go to settings
        src.tabControl.selectedSegmentIndex = 1; //not yet implemented - for now don't segway - reset to index 1 for now
        break;
    case 1:
        // this controller is called with index 1 - do nothing - should not get here
        break;
    case 2: {
        [UIView transitionWithView:src.navigationController.view duration:0.5
                           options:UIViewAnimationOptionTransitionFlipFromTop
                        animations:^{
                            [src.navigationController popViewControllerAnimated:NO];
                        }
                        completion:NULL];
        }
            break;
        default:
            break;
    }
}

@end

Note that I have not yet implemented the transition in case 0 (segment 0) which will transition to another controller with code similar to what is implemented in case 2.